Rock drill mounting



Sept. 14, 1965 GYoNGYosl 3,205,627

ROCK DRILL MOUNTING Original Filed Jan. 28, 1960 2 Sheets-Sheet l iNvENToR LASZLU GYONGYOS/ Bm\ Hls A Sept. 14, 1965 L. GYoNGYosl ROCK DRILL MOUNTING 2 Sheets-Sheet 2 Original Filed Jan. 28, 1960 INVENTOR LASZLO GYONGYOS/ United States Patent O 3,205,627 ROCK DRILL MOUNTllNG Laszlo Gyongyosi, Easton, Pa., assigner to ngersoll-Rand Company, New York, NX., a corporation of New Jersey Continuation of application Ser. No. 5,268, Ilan. 23,

1960. This application .lilly 9, 1962, Ser. No. 208,530

4 Claims. (Cl. 52-115) This `application is a continuation of my co-pending application Serial No. 5,208, tiled January 28, 1960, and now abandoned.

This invention relates to rock drill mountings, and more particularly to improvements for positioning the drill tower of the mounting with respect to drilling operations.

An object of the present inven-tion is to provide an improved rock drill mounting which permits easy and quick positioning of the drill tower to drill the Various types of holes under various angles.

Another object of the present invention is to provide more in particular an improved rock drill mounting to easily position the drill tower for toe-hole drilling operations.

Yet another object of the present invention is to pro- Vide an improved rock drill mounting with which the drill tower is positioned for the various drilling operations without manual operations with respect to the drill tower.

The advantages of this invention will appear more fully from the following specification made in connection with the accompanying drawings, in which- FIGURE l fis a side view of the rock drill mounting showing in solid lines the drill tower with its associated components in a vertical position, and in dotted lines the drill tower in a position for toe-hole drilling, and

FIG. 2 is a top view of the device shown in FIGURE l.

The` rock drill mounting illustrated in the drawing comprises sa drill tower 16 carried by a substantially horizontal mobile base 8 including laterally spaced endless track laying frame members 10 connected to each other by cross beams 12 and 14. Cross beam 12 forms the connection between the rear end portions of frame members 10 while cross beam 14 forms the connection between the forward end portions of frame members 10. The forward end portions of frame members 10 are identifiable by their positions being adjacent the lower end of drill tower 16, in the erect position of the drill tower, and adjacent the control panel 6 mounted on a platform 7, see FIG. 2, from which the operator controls the various drilling operations and the steering and propulsion of the base. Drill tower 16 is of a commonly known type supporting and guiding a commonly known type rock drill 18 in a conventional manner. A pair of later- .ally spaced beams 20 of fixed length, a pair of laterally spaced power cylinders 22 and a sec-ond pair of laterally spaced power cylinders 24, both pairs of power cylinders preferably in the form of telescoping motors of the commonly known extensible hydraulic type, serve to support the drill ltower 16 and cooperate with each other to position the drill tower 16 in the various desired drilling positions.

The beams 20 and both pairs of telescoping motors or power cylinders 22 and 24 :are pivotally connected to the t-ower 16 as well as to the base 8, and in order to achieve a lirm support for the tower and to permit the tower 16 to move as freely as possible in an unobstructed path the beams and power cylinders are connected to the sides of the tower and to corresponding locations on the base 8.

One of the connections between the drill tower 16 and ICC the base 8 is a pair of laterally spaced brackets 26 connected to the sides of the drill tower 16, brackets 26 being positioned adjacent the lower end of the drill tower, in the erect position of the drill tower. Upward of the brackets 26 another pair of laterally spaced brackets 2S is provided, also connected to the sides of the drill tower 16. Opposing the brackets 26 and 28 a pair of laterally spaced brackets 30 is connected to the cross beam 14 and another pair of laterally spaced brackets 32 is provided, connected to the cross beam 12. The beams 2t) yand the power cylinders 22 are pivotally connected to, respectively, the brackets 26 and 30, and 28 and 32.

In order to hold and position the drill tower 16 in various drilling positions a third connection between the drill tower 16 and the mobile base 8 is provided to cooperate with the beams 20 and the power cylinders 22. The third connection includes the laterally spaced power cylinders 24 pivotally connected at their one ends to brackets 34 on the beams 20 positioned adjacent the brackets 26, and at their other ends pivotally connected to laterally spaced brackets 36 on the cross beam 12 and in a plane higher than the pivotal connections between the beams and the base.

ln operation the drill tower 16 can be positioned 'in four extreme positions: (l) 'Ihe drill tower substantially vertical with its lower end between the frame members 10 when the power cylinders 22 are fully extended, the power cylinders 24 fully retracted, and the beams 20 substantially vertical and parallel relative to the drill tower 16; (2) the drill tower substantially vertical and positioned away from the base with the Alower end of the drill tower extending beyond the lower end of the base, when both pairs of power cylinders 22 and 24 are fully extended; (3) the drill tower in a raised position relative to the base 8 and substantially horizontal in a slightly yinclined position when both pairs of power cylinders 22 and 24 are fully retracted and the beams 2t) substantially vertical, this raised horizontal position of the drill tower 16 used for horizontal drilling as well as when the drill unit is transported from one location to another; (4) the drill tower in toe-drilling position when the power cylinders 22 are fully retracted land the power cylinders 24 fully extended.

It is to be noted that the power cylinders 22 and 24, cooperating with the beams 20, can maintain and position the drill tower in substantially an inlinite number of positions within the limits of the four aforementioned extreme positions of the drill tower 16. When, for instance, the drill tower is to be positioned and held for angle drilling the power cylinders 24 are fully retracted, the beams 20 are substantially vertical while the power cylinders 22 are partly retracted such that the drill tower is tilted backwards about lifteen to twenty degrees for such angle drilling.

With the provision of the two pairs of power cylinders 22 and 24 cooperating with the beams 20, the drill tower 16 can be positioned and held in various drilling positions by simply manipulating the hydraulic controls (not shown) to operate the power cylinders and to automatically position and hold the drill tower in such drilling positions. With this arrangement all manual operations, required heretofore to be performed on the drill tower, are eliminated.

While I have shown and described a specific form of my invention, it is to be understood that various changes and modifications may be -made without departing from the spirit of the invention as set forth in the appended claims.

I claim:

1. A mounting for a rock drill comprising a substantially horizontal mobile base, a drill tower to support and guide such rock drill, first support means of fixed length havingat one end a iirst pivotal connection adjacent the lower end of said tower in the erect position of said tower and at the other end a pivotal connection with said base, second support means being extensible and having at one end a pivotal connection with said tower upward of said first pivotal connection in the erect position of said tower and at the other end a pivotal connection with said base to rotate said tower on said first pivotal connection, and means to vary the length of said second support means, third support means being extensible and having at one end a pivotal connection with said first support means adjacent said rst pivotal connection and at the other end a pivotal connection with said base to rotate said first support means on the pivotal connection of the first support means with said base, and means to vary the length of said third support means.

2. The mounting claimed in claim 1 in which said first support means includes a pair of laterally spaced beams, each of which is pivotally connected at one end to the tower and at the other end to said base.

3. The mounting claimed in claim 1 in which said third support means includes a pair of laterally spaced telescoping motor means, each of which is pivotally connected at one end to one of said beams and at the other end to said base. t i

4. A mounting for a rock drill comprising a substantially horizontally mobile base having laterally spaced track laying frame members, said frame members connected to each other by longitudinally spaced cross beams, a drill tower to support and guide such rock drill, a pair of laterally spaced beams of fixed length having first pivotal connections at one of their ends to the outer sides and adjacent the lower end portion of said tower in the erect position of said tower, and their other ends pivotally connected to one of said cross beams adjacent the forward ends of ysaid frame members, a first pair of laterally spaced telescoping motor means pivotally connected at one of their ends to the opposing sides of said tower upward of said iirst pivotal connections in the erect position of said tower, and at their other ends pivotally connected to the other cross beam adjacent the rear ends of said frame members to rotate said tower on said first pivotal connections, a second pair of laterally spaced telescoping motor means having one of their ends pivotally connected to said beams adjacent said first pivotal connections and their other ends pivotally connected to said cross beam adjacent the rear ends of said frame members and in a plane higher than said pivotal connections of said beams with said base to rotate said beams on the pivotal connections of the beams with said base.

References Cited by the Examiner UNITED STATES PATENTS 2,845,251 7/58 Barton et a1. 280-43.23 X 2,903,949 9/59 Simmonds 173-28 2,949,280 8/60 Curtis 52-115 2,983,482 5/61 Cary 214-3 FOREIGN PATENTS 857,033 11/52 Germany.

RICHARD W. COOKE, JR., Primary Examiner. 

1. A MOUNTING FOR A ROCK DRILL COMPRISING A SUBSTANTIALLY HORIZONTAL MOBILE BASE, A DRILL TOWER TO SUPPORT AND GUIDE SUCH ROCK DRILL, FIRST SUPPORT MEANS OF FIXED LENGTH HAVING AT ONE END A FIRST PIVOTAL CONNECTION ADJACENT THE LOWER END OF SAID TOWER IN THE ERECT POSITION OF SAID TOWER AND AT THE OTHER END A PIVOTAL CONNECTION WITH SAID BASE, SECOND SUPPOORT MEANS BEING EXTENSIBLE AND HAVING AT ONE END A PIVOTAL CONNECTION WITH SAID TOWER UPWARD OF SAID FIRST PIVOTAL CONNECTION IN THE ERECT POSITION OF SAID TOWERAND AT THE OTHER END A PIVOTAL CONNECTION WITH SAID BASE TO ROTATE SAID TOWER ONE SAID FIRST PIVOTAL CONNECTION, AND MEANS TO VARY THE LENGTH OF SAID SECOND SUPPORT MEANS, THIRD SUPPORT MEANS BEING EXTENSIBLE AND HAVING AT ONE END A PIVOTAL CONNECTION WITH SAID FIRST SUPPORT MEANS ADJACENT SAID FIRST PIVOTAL CONNECTION AND AT THE OTHER END A PIVOTAL CONNECTION WITH SAID BASE TO ROTATE SAID FIRST SUPPORT MEANS ON THE PIVOTAL CONNECTION OF THE FIRST SUPPORT MEANS WITH SAID BASE, AND MEANS TO VARY THE LENGTH OF SAID THIRD SUPPORT MEANS. 